Where does “kyykistyminen” come from?

kyykistyminen (Finnish) comes from Finnish kyykistyä, from Finnish kyykky, from Finnish kukku, from Proto-Malayo-Polynesian kukuh, from Proto-Austronesian kuSkuS — nail.

Ancestry of “kyykistyminen”, step by step

StepLanguageWordMeaning
1Finnishkyykistyäto squat (down), crouch to bend deeply at the knees while resting on one's feet
2Finnishkyykkysquat, bended position
3Finnishkukkuheap; part that goes or is left over; Synonym of...
4Proto-Malayo-Polynesiankukuhnail
5Proto-AustronesiankuSkuSnail
Every word from Proto-Austronesian kuSkuS →Every word from Proto-Malayo-Polynesian kukuh →Every word from Finnish kukku →